* Updated nikic/php-parser from 3.1.3 to 3.1.5 (dev-only).
* Updated pear/net_smtp from 1.8.0 to 1.8.1.
* Updated cssjanus/cssjanus from 1.2.0 to 1.2.1.
+* Updated wikimedia/php-session-serializer from 1.0.6 to 1.0.7.
==== Removed external libraries ====